Wiring Color Code for Hopkins 7-Way # HM20041

Updated 09/04/2018 | Published 09/02/2018

Question:

Cable p/n HM20041, is the wire insulation color coded per SAE J2863, and will the connector fit my 2015 F150? This F150 has one of the three small trailer towing packages, I do not know which. Also, is there a 6’ version of this cable available? Thanks,

asked by: Peter W

Helpful Expert Reply:

Here is the wiring color codes for the 7-way part # HM20041 that you referenced:

White: ground wire
Yellow: left turn/brake light
Green: right turn/brake light
Brown: tail lights
Purple: reverse lights
Blue: electric brakes
Black: auxiliary power

This color code is normally referred to as (7-way traditional). I attached a picture that shows all of the styles of 7-way wiring for you to check out as well.